The perpetrators abducted 19 people from a local mosque on Saturday evening, the Punch newspaper said, adding that six victims were later rescued.
Police spokesman confirmed the attack to the media.
"The terrorists stormed the mosque at Maigamji [village] while people were observing Issaih prayers. They shot and injured the Imam and one other person. Those people are currently responding to treatment in the hospital. The terrorists also abducted some worshippers that night," state police spokesman Gambo Isah was quoted as saying by the newspaper.
While local media did not specify whether the attack claimed any lives, Reuters reported, citing a local resident, that around 12 people were killed in the attack, including the chief imam.